Portable reading lamp



FIG. 1 is a side elevational view of a portable reading lamp showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view thereof on a reduced scale, a book being shown in broken lines for illustrative purposes only. 

The ornamental design for a portable reading lamp, as shown and described. 